### SAOImageDS9 Installation Instructions

> > Linux Installation

> > DS9 for linux is a self contained application and does not require any installation procedures or support files.
> > 1. Download DS9 for linux.
> > 2. Use the following command line to extract DS9:
> > 3. `$ cat ds9.<port>.<version>.tar.gz | tar -xzvf -`
> > 4. Move the ds9 executable into a directory in your path.

> > MacOS

> > 1. Download DS9 for MacOS. Drag to your Applications folder.

> > Darwin

> > Darwin is only recommended for experienced users of linux. For other users, we recommend DS9 for MacOS.
> > DS9 Darwin requires XQuartz. DS9 for Darwin is a executable and must be run from the command line of a Terminal window.
> > 1. Download DS9 for Darwin.
> > 2. Open a Terminal window.
> > 3. Use the following command line to extract DS9:
> > 4. `$ cat ds9.darwin<arch>.<version>.tar.gz | tar -xzvf -`
> > 5. (Optional) Move ds9 and ds9.zip executable into a directory in your path.

> > Windows

> > 1. Download DS9 for Windows.
> > 2. Execute the install file. DS9 will be installed by default in `C:\SAOImageDS9`.